Re: {Chrysler 300} Chrysler Castle Axle Nuts - Correct Size

On Tue, Dec 5, 2023, 7:48 AM 'James Douglas' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:

Well,

I have spent days and could not find nut that has the rather large OD as the factory Castle Nut. They just do not exist.

One could order a Heavy Hex Nut and use one of those cotter pin toppers with it I suppose. The problem is that a heavy hex nut is also taller. It would have to be put into a lathe and cut down.

Yes, I can find other used ones. But most of them have been battered by the pushed down threads of badly removed drum keys.

So much fun.

James

From: 'James Douglas' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Sent: Friday, December 1, 2023 08:13
To: Zach Hietsch <zhietsch@xxxxxxxxx>; Chrysler 300 List Server (chrysler-300-club-international@xxxxxxxxxxxxxxxx) <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: RE: {Chrysler 300} Chrysler Castle Axle Nuts - Correct Size - Finding

Thanks Zach, I have some used spares from my 1940’s Desoto’s. I was looking for some new nuts. Why? Because over time people pull off the hubs without giving the square pin a hit on the end with a hammer and punch to make sure that then they pull the hub off it does not come with it. When it does come with the hub that destroys the threads on the axle shaft.

Idiots then do not case the axle shaft threads with a cleaning die and just stick the nut on and crank it down. That screws up the nut threads and they are never the same again.

If you chase the nut and chase the axle shaft you get a sloppy nut that will not torque correctly. Hence, why I am looking for new nuts.

I suspect that I am looking for a ghost and will have to just use the new nuts available and have to machine a washer to make up for the flange area and depth of the nut. In any case a close inspection of the washers show that they are “cupping” a bit which means that the drum is pushing back on that nut. A hardened slightly thicker washer may not be a bad thing, I just hate to lose even 4 or 5 threads of depth with the available new nuts. A VERY high-quality cotter pin is a good idea on these very old threads.

James

From: Zach Hietsch <zhietsch@xxxxxxxxx>
Sent: Friday, December 1, 2023 07:24
To: James Douglas <jdd@xxxxxxxxxx>
Subject: Re: {Chrysler 300} Chrysler Castle Axle Nuts - Correct Size - Finding

Hello James,

I have a 300B and I’m pretty sure I have a few spare castle nuts for the spindle to hold the drums on. Is that what you are looking for?

If it’s for the suspension I might have those too. I got a bunch of parts when I got my car and I haven’t gotten through all of it yet. There is also potential that they are not for a Chrysler as my grandfather kept everything from everything.

Thanks

Zach Hietsch

On Dec 1, 2023, at 10:03 AM, 'James Douglas' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:

Hello all,

I have been hunting on the internet for an hour with no luck. Chrysler used the same rear axle castle nuts apparently from 1946 to at least 1964. I have a so-so nut and need a replacement.

I checked all the sources and none of the replacements are the correct size. The nut Chrysler used was something of a SAE heavy nut.

Although many ¾-16 nuts are out there, none of them have the larger bearing face nor the proper depth for the cotter pin to lineup.

The factory nut is 1.26 inch across the face and is 0.625 tall. Both my 1946 Desoto nuts and the 300K nuts are the same.

Has anyone found a source for new nuts that are that size?

Thanks, James

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